We look at the division of 149811 by 86 
We want to divide 149811 by 86.

On to step 1:
86 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 86

Moving on to step 2:
86 goes into 14 0 times with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 14 to get 14.
Take the next digit (9) from the dividend and append it to 14, then repeat: 149 / 86

On to step 3:
If we divide 149 by 86, we get 1 and a remainder of 63.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 86 from 149 and we're left with 63.
Fetch the next digit (8) from the dividend, attach it to 63 and continue: 638 / 86

On to step 4:
If we divide 638 by 86, we get 7 and a remainder of 36.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 36 after subtracting 602 from 638.
Take the next digit (1) from the dividend and append it to 36, then repeat: 361 / 86

Let's proceed to step 5:
361 divided by 86 is 4 with a remainder of 17.
Put 4 as the next digit of the answer. 
Result so far: 174.0
The remainder is 17 after subtracting 344 from 361.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 86

Step 6:
The number 86 fits into 171 1 times, leaving a remainder of 85.
The next digit of our result is 1. 
Result so far: 1741.0
Subtract 86 from 171 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 7:
86 can be fit into 850 9 times, resulting in a remainder of 76.
The number 9 becomes the next digit in our result. 
Result so far: 1741.9
If we subtract 774 from 850, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 8:
The number 86 fits into 760 8 times, leaving a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 1741.98
If we subtract 688 from 760, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 9:
86 can be fit into 720 8 times, resulting in a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 1741.988
The remainder is 32 after subtracting 688 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

After the division, we end up with 1741.988 and a remainder of 0.0032.